Shoe-channeling machine.



No. 897,323., EATENTED SEPT. 1, 1908. E. A. WEBSTER.

sHoE GHANNELING MACHINE.

APPLIOATIQN FILED MAY 15, 1907.

3 SHEETS-SHEET l.

a mmm-SHEET 2.

l. 01 n a PATBNTED SEPT. 1, 1908.

E. A. WEBSTER.

SHOE GHANNBLIN G MACHINE.

APPLICATION FILED MAY 15, 1907.

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- Nmsgzszm PATENTED sEPT.1`, 1908.-

E. A.' WEBSTER.-

.SHOE CHANNELING MACHINE.

APPLwATIon funn un 15,-1907.

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uNiTJED s-fiuirns` PATENT Crimen EDWIN A. ivEBSTER, on GROvELANn,MASSACHUSETTS, AsSrcNoR 'To HAvEaHILL CHANNE .ING MACHINE. COMPANY, OFPORTLAND, MAINET menjtinlg-*Sdio'efChanneling Machines; of whichthefollowing description, in connection with the accompanying drawings,isa Specification',` like characters on the drawings representing likeparts.

v Thisfinvention relates to certain improvementsf'in 'a sole channelingmachine ofthe-- character di-sclosed in my pending `application SerialNo. 297 ,094, filed January 22, 1906, inwhicli the channel is cut by arecipupper'receiving face is formed by a' rotary knife.

ln forming an up er receiving Seaton the edge'portion of a so e with arotary knife, I have experienced much difficulty in causing theknife toremove thechips completely, particularly when the leather is s ft andthe {nife became Soniew'hat dulled, and to leave the edge of the scileAsmooth and clean-cut. In t-hisfconnection one of the objects of the .uythechins will be completely removed and the edgel of the sole will besmooth and sharp at Athe-end 4of the channeling Operation, eveny thoughthe leather is soft and the knife edge becomessomewhat dulled.

ilInfchanneling soles having pointed toes, 'I haveffexperienceddifficulty in preventing lacerati'on of the channel flap at the toe, anda further' Object of my invention is to provide a forni of knife, andrelative adjustment` kcutters 'bf different formsf whichv l em loy.

5 isa sectional view of va sole whic 1 has been o; erated upon bvacutter' of the form show inifFigfof. Figf isacentral sectional lSpecicatiion of-Letters Patent.. Application mea nay 15, 1907.vgseriaim. 373,726.

Fig. .14 is a sectional viewon the line. 'c-c of rocatingvknife and theedge shoulder or resent invention is to provide means Where# MAINE, .ACORPORATION or 's HOaCHANNELINe MACHINE.

'Patented sept. 1,-19oa view of the cutterfand vsole-shown in Fig. 4 ona' plane at ight angles to the planefof the section in F gf4. Fig. 7'isf'a top side view of a ortion O f'a" sole... Figs'; 8,"9 and 10 are'de-l 'tail views of the sole edge ard.y Fi 1'1 is 60 an enlarged detailsection (l'llview on' t `e vline arf-a. ofFig., 1. Fig. 12-

an enlarged'detail end view of theknife blockcasing. Fig.l 13 is asectional view onthe line b-b of Fig.12.

Fig. 1,2.l Fig. 115 isa detail view' of the channeling .knife- Figs.v 16and l17 are ldetail views of the capfplatel ofthe knife block casing.AFig. 18 is a detail 'sectional view on tlieline d-d of Fig. 19. Fig. 19is a detail 7o end view of the rotary cutter. Fig.- 20 is a viewillustrating theoperation of channeling I about the toe.

In the drawing, 1 indicates the frame of the machine, said frame beingprovided With a bracket arm 2 in which a circular work supporting table3 is mounted to rotate about a nearly vertical axis, saidtablebeing'provided witha bevel gear/1 at its under side which is in mesh.with the bevel gear- 5 mount 8 0 ed on the end of a shaft 6, journaledin the frame and adapted to be turned by the crank v7. A feed wheel 8ismounted on the end of .the shaft 9 -directly over the table 3,adjacent the edge thereof, said shaft 9 being mounted 8e fin the pivotedframe section 10, and arranged so that; the axes of the table 3 andwheel 8 are in the same vertical plane, as in prior devices of thischaracter, va gear 11v on shaft 6 being arranged in engagement with agear on shaft 9, softhat .said table and wheel may be rotated in unison.

A rotary cutter or knife Y12. isthreaded on the end of a shaft '13',Whichis vjournaled inta' support 14, said 'shaft 13 being drivenfrom 95the main shaft 15 by means of a-pulley 16, mounted on said shaft 15.,belt` 17, which asses about pulley 16 anda ulley 18,- the'- atter beingmounted on asha t 19, and carrying a pulley 2O which is' connected topulley '.100 21- on the cutter shaft 13by a belt 22.

The vform of cutter which` I find to be best adapted for the purposeconsists of an jannular head or shank, into which the end of. the cutterShaft is threaded, and from the` end of Which'tw'o blades 12" roject, asbest. shown in Fig. 19, said blades eing extended longitudinally'of theshaft, eitherparallel or i at different angles thereto, according to the[An edge guide 30 is mounted on an arm 31,

paththereof as practicable.

i ell'crank lever 23 engages slide 32 and a l which is to be formed onthe edge of thesolel For example, if it is desiredto produce a'shoe.having a thick edge, the blades are in'ade to extend divergently fromthe shank 12, as

, employed according to reuireinents, buttheimportant feature of all othese forms is that theV cutting edge of each bladeis so'disposed withrelation to an axial plane of the cutter',

`intersecting-fthe edge adjacent the cuttery shank, that the'pqrtionofthe blade beyond such point 'of intersection does not extend throughsaid plane, but preferably extends" obli uely therefrom, asshown, s othat the 2 0 edgeadvances towards said'plane as the cut- Cterisrotated.r y f A collar 23is,rotatably mounted upona shank 12 andthe framev and'conc'entrically' with the cutter shaft 13, said collarbeing 'provided with shoulders 24 which are adapted to engage a pin 25fixed inthe frame, -as

projecting sleeve. 24 between the cutter findicated in `Fig. 19,- tolimit the 'extent .of

rotation thereof upon the sleeve. A concaveor'segmental shaped shield 26projects from thecollar 2'4 longitudinally of shaft 13,

tol 'the endsfofthev cutter blades 12, land is provided at its end with.a sole engaging foot 27 lwhich-is integral therewith and ,extendstransverselyand downward therefrom in position to be pressed'against thesurface of the y sole closelyadjacent the path of the cutting edges ofthe cutter blades. ofv the foot 27 is rounded, see Fig. 19, to permitready insertion'o the 'sole between the' The lower end same and thetable 3, and its sole engaging face isadapted to be held in yieldingengagement with the sole which is connected to said collar 24 andthe-traine,` as shown in Figs. 2 and-19.

'1 said arm being in turn mounted on a slide 32,

said slide being arranged in guideways on the frame, see Fig. 1, so asto carry the guard to'- ward 'and from .the table 3. Thesole-edgeengagingportion 30' ofthe guide extends over the-surface of thetable 3 and isxconf caved -on its'upper sidev corresponding to the fendthereof.' i

' path of the cutter blades, to permit. it to be extended beneathsaidblades as close tothe One end of a rod, 34'is pivotallyconnectedto-the other A sprin 35 on the rod acts between a collar 36 ont e rod anda lug 37 on lthe frame', through which said Irod passes iloosely, and, a nut 38, threaded on the rod limits the extent which saidspring 35 can press the edge guide-towards the feed wheel 8. #The rod 34adapted to be drawn down lsupport 40 anda ring 45 secured to' said sulby a treadle, not shown, tovary the distance which the channel is cutfrom the edge.

`Asupport 40v is mounted 1n the frame section 10, and a sleeve 41 isrotatably and slidablyA mounted in said support.` "A shaftf 43 isrotatably mounted in the sleeve 41,-said ,shaft being provided' withrneans'for holding "it from longitudinal movementcompris fa4 flange 44thereon, which is held betweent e port. A pulley 46 is mountedon-theshaft, 43'and is ada )tedto bedrivenby a belt 47 which passes tereab'out over the'idle pulleys .'48 from the pulley 16. The oppositeend'of the sihaft .43 `trom the pulle 4.6 is 'provided withanv eccentricpin' 49- w 'ch is rotatable,

and sli'dable in a'rectan'gularblock 50. A

knifeibloc'k 51, isprvided with four lparallel-` guiding'arrns'52,53,54, and 5,5,. which vare slidably mounted on o positey sides offslpair -of lugs 56, 57 integra with the sleeve 41. v :Said sleeve'41isalso provided withextend- .ing casing portions 58 and 59' ltov provide,

uidingmeans for the o posite sidesof the ,'13,

ife block arms, an adjustable weaiplate 60 being provided' betweensaidcasinfg porv Y tion 58,and arms 53, 54. The middle por@` .tion` of theblock is, transversely slotted to' provide ways 51.', 'between whichsaidblockl -50 is slidably mounted,- so, that, when said shaft '43isi-rotated, said blockY 51 will'b'ef reciprocated on its saidguideways.

' A' cover plate 61 is secured -'against the lugs 56,- 57 and theedgesof casing ortions58vand. I

l59-to close the casing ant. to -serveas. a'

side guide for the knife block. t A knife 62.is i

clamped' againstone side of-theblock 51 by means 'of a clamping plate63, said-knife be-v ing held parallel with the guideways'of ther block51 and having a cutting edgeI '62 on' one side which extends from thelower end thereof adistance as great as the lengthfof I the channel tobe cut thereby. The knife is provided with a narrow, chisel-shaped endand the back thereof iss'omewhat tapered 11o and. rounded so that thereare no sharp cor-'1v A bolt'64 is arranged in suppQI-t 4,0,tnsfverselyof the'sleevez41,-and is provided with a recess 64 in oneside thereof, through-winch said sleeve is adapted to be passedl. A-nut`65011 said bolt -is adapted 'to' draw itsogth'at one side l,of itsrecess 6 4' will be forced intoclamping engagement with said v sleeve to1 lock the same rigidly in any longitudinal position, withfce'rtainlimits, to which itma be adjusted. With this lconstruction,it Wi beapparent that the inclination and V.transwithout withdrawing theeccentric pin 49 from the block 5), theihaft'143 being unaffected by.said-'adjustment' "lnoperati'on the: sole to. be''channeled is :fedlfrom front-torear and thevcutter is rotated so that its Vblades move'`the,4

versc. position. `ofthe .knife maybe varied senses ytable 3, andperpendicular to the' direction inwhich the sole is fedv at the point ofengagement. As reviously-stated,.the cutting kedges of t e blade extendobliquely rearward from 'the'shank, and therefore lob- 1 liquelyrearward with relation to the edge of the corner at its edge sharp the'sole at the oint engaged, `so that, in forming the shou der, or u perreceiving seat on the sole, the leather. att e edge is cut away inadvance of-the portion more .remote from the.- edge. As the ends oftheblades are `behind the base ends thereof, as they advance,

the tendency is to beat or force the `leather in from the sole edge asit is cut, thus leaving and smooth'. The leather in front of the. bladeis also thus enabled to act as a su -port to hold the chi s 'until theyare com fdtely severed.

advance of the'shank portion, then the-tendency would.. to be' force the'leather` toward the edgeas itis removed, and this would also be thecase'lif the cutter were rotated about" an approximatelyvertical axis,so that, in

either instance, the chips at the edge would l being highlyunsatisfactory.

To assist the cutter .in completely removing the chips, and 'to preventthe' blades thereof from 'lifting the sole'from the table,

"thev `presser-foot 21 is provided, which is dentoo dee forced intoyielding engagementv with the leather by the spring 28 closelyadjacentthe point where 'the blades' leave lthe leather,-

thereby acting to hold the leather vdown while the adjacent portion isbeingA severed,

and, also, at all times Afirmly holding the sole against-'the table,thereby counteracting the tendency which the blades' have of lifting theso rom'the table and thus cutting the shoul- This foot 27, and theadjacent shield 26 .W `ch connects-ittothe collar 24,

extend over approximately one-half the cutter'and performthe-function ofa lchip uard,

i 'said guard havin fits'lower edges hel close gator; l ,I

- Whileinchannehng a to the surface-o theV sole: y,at all timesandpre'venting the chipsre'moved by the cutter om being thrown into theface of the operj shoe having a broad toe the exact osition ofthekchanneling knife with relation toy the vertical plane of vthe cuttersis of little consequence, provided it'liesa proximately'within saidplane, yet in channe ing a shoe having a very pointed toe,

M which the cliannel-turns'at.a-sharp angle,`

.morder to avoid laceration ofthe lip or fiap,

`fit is neeessaryto .have theel/Knife. accurately A "whichis very If t eVend portions of the ladeswere arranged in ment,` havediscovered that inorder l,to orm j the edge shoulder about the toe of a sole ointed, witha minimum laceration of 'the of the knife should lie inthe vertical.plane' of the cutters axis, so that, as illustrated 'in the Aiagrarn ofFig. 20, the rounded ,back ofthe nife may serve as a guiding pivot aboutwhich the/'cutter may bev swung in shaping the edge about the toe. Inether words the back of the knife is held lap roximately at-f'the pointwhich represents tiie vertex ofthe angle lof thefchannel, as the sole isswung to shape it about the toe, said back -being held against the lipwhich has been cut just pre-- vious toy turning, and, while it will rollback the lip slightly ,it will notvlacerate it,.the only lacerationwhich will be caused being due to the necessity of running the front.edge of theknife slightly beyond lthe vertex of theehannel,consequential. I

The knife may be adjusted to the vrecise, point desired by simplyloosening the olt 64 and sliding the sleeve 41 forwardly or rearwardly,the block sliding o n the crank pin 49 as the sleeveis adjusted, andsaid bolt act- .ing `to lock the sleeve firmly in any 'position towhichit maybe adjusted.

In practice the knife 62 is re'cipiocated at avr high rate of speed,the'reciprocations vbei-ng very short, so that, aside from the time whenthe knife is first lowered into lthe channel, practically all thecutting of the. channel is performed by the longitudinal edge 62 oftheknife( The depth ofthe channel is determined by the vertical position ofthe support 4() which 4*is adjustably connected to the framesection 10.

, The `form of guiding means for the knife blockis also a featu'refofimportance, as. the four guiding arms eectively prevent all .transversevibration of the knife and provide ample opportunity vto take up wear.'The connection between the block and shaft -which `reciprocates it iscompact and especially adapted for use but as the' knife is very narrow,this is in 1p, the back or rounded edge Having thus ldescribed myinvention, i

what l claim/as new and desire to secure by Letters Patent is 1 1.machine of the character described comprising a sole support, aknifemountedk toA rotate on an axis" approximately parallel to said support,and extending longitudinally of said axis in position to form an up`perzreceivingseat on the upper edge portion f la sole held onsaidgsupport, said liquely rearward from its sole-edge-engaging l knifehav- .mg lts, cutting edge disposed vto extend obportion, sotliat the.leather' atthe edge 'of the solefis removed advance of that moreref""niot'ely situated from' the edge, 'substantial-ly as described. f

'.comprisingfa sole. support. and :means for moving the jsolethereoverin la-.predeter- 'l '2. A machine ofthe character described'mined direction', a 'shaftirotatable'about an axis approximatelyperpendicular t`o the di- 10 rection' in which the soleisffedand'parallel to the' face of said; support-a cutter mountedon said-shafthaving a knife extending longitudinally thereof in' .position to''engage .the upper' side; of the' sole, adjacent its edge,' W. 'e

n ,held-on'sjaid support, means forrotating "said shaft so 'rthatatheAknife is advanced,

I'in the o posite' direction to that in vs fhich'thel sole 1s f ed'While-.in engagement therewith,- saidfknife. -having'its cutting edgeextending 2c rearwardly, with, relation Lto, its direction" vofrotation, .from its"A soleeedge-engaging tion, to remove thetleatl'ierIat the edge o the sole. in advanee'of that 'situated more re- .motely'fro'rnI-its. edge,. su.bstantially. as y'de- 25Scrbed.

comprising a rotary shaftihavi'ng a knife mounted thereon Withitscutting edge, ex# tending longitudinally thereof, means for .holding asole-With its'upperside approximatelyparallel lto the' axis of. theknife and fforfee ing; it against the vrotation ofthe machineof the'character -der-scribed.

knife,-l a` 'presser-foot' .having a sole-engaging, face extendinglongitudinally of the knife' surface ofthe sole in advance' of ytheknife, :substantially as described.

I- f l 40' 4. A machine of -the'character descrlbed von'lprising'arotary shaft having a knife mountedthereon with its cutting edge eX-.

with'its rear'edgadi's O sedl closely adjacent the path .ofi-the .edge o'the knife, and means `for yieldingly pressing said foot against Vthe ftendinglongitudinally thereof, sole sup ort-A [ing'and feeding meansforholding a so e ti-position to-be engaged iat its upper side by'theknifea-nd for moving itagainst the rotation thereof, and-'a presserfoot' disposed to bear againstthe surface of the s ole closelyTatijacent. the point` at vwhich the .knife moves aigle engagement withthe sole, said foot 55'. .of fthe 'charactelf .described niggneans for1-holdinge@ solev in sa id b1ock,}and a 4support having guidewfay's "ffor said arms dis osed at opposite-sides tending longitudinally thereof,sole', support-'- 8. A machine of the. character' described;

edge thereof closely ladjacent fthe surface of the sole, substantiallyas' described.

'56. A machine of the character 1 described comprising a rotaryshafthavin'g a knife mounted thereon with its cutting edge-exi7@ ing andfeeding means for holding a. solein position to `be'engaged-at its up'er side bythe knife and moving it against t e rotation thereof, 'asupporting ring mounted tomo've circularlyof sai'd shaft, adjacent. saidknife,

. a guar-d. plate extending from'said ring longi tudinally of theknifeand adjacent the path.

' thereof, said' plate havin .fa sole engagingy f portion at one edgethereofand means for' circularly moving'saidring to press said en-jgaging portion yagains`t .the sole `adjacentthe pathof the knife,substantially .as described'.

7. A machine ofthefcharacter 'described' comprising sole feeding andsupporting-55 `means, aV rotary lcutter' disposed to -engage a sole`held therebytoformian upper receiving seat thereon, a knife blockhavinga channel -cutting knife mquntedfthereon, va ysupport ha'vinfrvuideways' on' said 4block isrcpo l D c n ciprocally mounted, means forreciprocating arms, permitting said block to reciprocate at right anglesto said shaft and eccentric con- 105.

necting devices betweensaid block and said shaft and-'disposed betweenlsaid supports,

substantially.as'descrihed.l

9; A lmachine of 'the character*- described comprising a knife block,composed foftwo l13,0 pairs of oppositely extending parallel larms 'andhaving an intermediate,transversely disposed slot, a rotary shaft havingan eccentric portion extending into said slot to L engage said block,"andvguiding supports. disposed of said slot, substantially asdescribed,l0. A machine of comprisingv a knife'block "composed of two' pairs ofoppositely. extendingparallel arms and having an intermediate7transversely disposed slot, a'rotaiy shaft'having an eccentric portionextending into sald-slot., toengage the character described 'y '1"'thereof,- substlltialy .as described;

11: A'mavch'ineof'the .Character des Cilbey l "Stmme 'about horizontalaxls'm'posmon 1310- ini' between eachof said pairs of arms and atopposite sides end lies insthe Vertical a-Xiai plane of the cuttersaxis, substantially as described.

12. A maehine of the character described comprising a soie support7 acut-ter disposed y to rotate about a horizontal axis in position toengage the edge portion of a sole held on ,said support, a channelingknife having a sin 00th, rounded back and a cutting edge eX- tendingfrom its end, and means for reciprof eating said knife in such avposition that the back thereof adjacent its end lies in theverticalaxiai piane of the cutters axis, substantially as described. intestimony whereof, l have signed'my name to this specifieffztion, in thepresence of 20 two subscribing Witnesses.

EDWIN A. WEBSTER;

W'itnesses;

L. H'. HARRIMAM H.- B. DAVIS.

